secretary of state hillary clinton is going to be meeting with her russian counterpart, sergey lavrov. this is a meeting that's going to take place in dublin later today. this is an effort to try to get the peace plan for syria back on track, a u.n. effort that's stalled for so many months now. there's not a lot of hope it will get back on track anytime soon. a lot of international powers and pressure being put on syria to try to comply with some sort of peace plan so this nightmare scenario doesn't come to any sort of fruition. zoraida? >> all right, we're talking about a deadly nerve gas, it is sarin. can you tell us what kind of damage could this do to the people there? >> reporter: it's well known that sarin and the use of sarin is a nightmare scenario. the use of it could kill a huge amount of people in a very short amount of time. now, last night, a former cia officer, robert bear, was speaking to anderson cooper. he described what the use of sarin could do. here's more of what he had to say. >> one round and the dispersion on that could be -- depends on the wind -- but you coul